CVE-2007-4461

NuFW 2.2.3, and certain other versions after 2.0, allows remote attackers to bypass time-based packet filtering rules via certain "out of period" choices of packet transmission time.

Published: 2007-08-21 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-4461 is rated Moderate Risk (40.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.17%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-4461

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.26% 1.17% +0.91%
2 2025-03-17 5.76% 0.26% -5.50%
3 2024-12-17 — 5.76% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-4461

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2007-4461

OS Trackers for CVE-2007-4461

vendor priority summary link
ubuntu medium CVE-2007-4461 medium priority: Ubuntu including 1 source packages (nufw), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 6, ignored 3. https://ubuntu.com/security/CVE-2007-4461

Affected software / configurations for CVE-2007-4461

Vendor Product Version Raw CPE
nufw nufw 2.2.3 cpe:2.3:a:nufw:nufw:2.2.3:*:*:*:*:*:*:*

References for CVE-2007-4461

cvelogic Threat Intelligence